knockout Roses


Introduced in the U.S. in 2000, Knockout Roses™ have taken the rose world (and the landscaping world for that matter) by storm.
There are currently seven varieties of Knockout Roses sold in the United States. They have become the best selling rose class in North America. Cold Hardiness: USDA Zones 4b-9b
AHS Heat Zones: entire U.S.

Soil:
well drained, sandy loam to clay loam, acidic to mildly
acidic.
Sun:
at least 4-6 hours daily, preferably more (6-10)
Size:
average from 2-4 feet wide x 3-6 feet tall, can exceed
these dimensions in warmer climate zones.
Propagation:
root division, soft wood, semi-hardwood and hardwood
cuttings, grafting, budding.
Bloom:
Mild, spice, tea fragrance. 5 to 13 petals. Average
diameter 2” to 3.5". Large, single to semi-double, cluster-
flowered bloom form. Continuous (perpetual) bloom throughout the season.
Additional Information: highly disease resistant, moderately
shade tolerant.
knockout Roses

Knockout™ featuring deep, bright pink blooms
Double Knockout™, featuring red blooms with a fuller form
Pink Knockout™, featuring medium pastel pink blooms
Double Pink Knockout™, featuring double, medium pink blooms.
Rainbow Knockout™, featuring single pink bloom s with a yellow eye.
Blushing Knockout™, featuring single pastel pink blooms.
Sunny Knockout™, featuring bright yellow blooms
that fade to cream.


All feature a high degree of disease resistance and a broad
tolerance of varied growing conditions. These roses were
intensively bred for just those purposes, making them some of the lowest maintenance roses for the landscape and garden. They will grow and perform well with little fuss and a minimum of effort.

Since 2000, the Knockout class of roses (technically classed as a modern shrub rose by the American Rose Society) have been planted ubiquitously in commercial, public and residential landscapes.

They do not require regular pruning but bloom production and plant vigor can be increased with moderate pruning in late winter (and light pruning in summer in Carolina climates). Knockout roses generally require little in the way of supplemental fertilizers but will usually perform best when fertilized in early spring with a balanced, organic supplement or mix thereof.  

These include those most often recommended for roses: blood meal, bone meal, alfalfa, fish emulsion and epson salts, among others. For a busy, modern gardener who would like roses in the garden but who has little time for maintenance, the Knockout Roses would likely prove ideal candidates.



Lynn Cochran member of American Rose Society.


Helpful Links


Rosa Knockout Rose
Winter Care of Knockout Roses
Care of Knockout Roses